Report_Team#1. Part 3
- I. Model developing
The approach using AHP simplifies a complex problem into simple pair-wise comparisons. A hierarchy is constructed of goals, criteria and alternatives. It is very useful in complex decision-making.
Pic.4. SAATI method scheme
So with a help of this method we’ve got the functional model (for additional information look document saati_1):
F(X,Y,Z,W)= 0,1X+0,2Y+0,3Z+0,4W=0,1(0,5X1+0,25(X2+X3))+ 0,2(0,14Y1+0,29Y2+0,57Y3)+ 0,3(0,33(Z1+Z2)+0,25Z3+0,08Z4)+0,4(0,23W1+0,09W4+0,33(0,22(W21+W23)+0,19W22+0,14(W25+W26)+0,08W24)+0,35(0,18(W31+W32+W37)+0,16W36+0,1W35+0,08W34+0,06W33+0,04W38))= 0,05X1+0,025(X2+X3)+0,028Y1+0,058Y2+0,114Y3+0,099(Z1+Z2)+0,075Z3+0,024Z4+0,092W1+0,036W4+0,02904(W21+W23)+0,02508W22+0,006468(W25+W26)+0,01056W24+0,252(W31+W32+W37)+0,0224W36+ 0,014W35+0,012W34+0,0084W22+0,0056W38
So, in the shorter form:
F(X,Y,Z,W)= 0,05X1+0,025(X2+X3)+0,028Y1+0,058Y2+0,114Y3+0,099(Z1+Z2)+0,075Z3+0,024Z4+
0,092W1+0,036W4+0,02904(W21+W23)+0,02508W22+0,006468(W25+W26)+0,01056W24+
0,0252(W31+W32+W37)+0,0224W36+ 0,014W35+0,012W34+0,0084W33+0,0056W38
You can find all these conventional signs written in the table above.
On our opinion, to make this function more presentable we can partly use the method ABC of logistical systems analyzing. Highlighted indicators are mostly influential, as their coefficients are bigger. So you can see three groups of factors (A – most influential, B and C) and their influence on the function on the pic.3 below.
Pic.5. Influence of factors groups
II. Quick Scan
And finally we’re coming to Quick Scan. We decided to use weighted sum approach in the end.
Quick Scan
| Group | Factor | Weight | Score (0-1)
|
Weight * Score |
| Common | Productivity | 0,099 | ||
| Profitability | 0,099 | |||
| Number of “guaranteed” suppliers | 0,075 | |||
| X-factor | 0,024 | |||
| Government | ROI | 0,05 | ||
| Taxes | 0,025 | |||
| Legal system | 0,025 | |||
| Society and target market | ROI | 0,114 | ||
| Market attitude | 0,058 | |||
| Market competition and state of market | 0,028 | |||
| Logistics | ||||
| Production | The presence of idle time | 0,092 | ||
| Storage | The convenience of warehouses disposition | 0,02904 | ||
| The collaboration with other companies | 0,01056 | |||
| Annual energy consumption per unit | 0,02904 | |||
| Warehouses filling | 0,02508 | |||
| Automation of storing systems | 0,006468 | |||
| Automation of loading/unloading. | 0,006468 | |||
| Transport | Optimization of navigation routs | 0,0252 | ||
| Filling of transportation units (TU) | 0,0252 | |||
| The collaboration with other companies | 0,0084 | |||
| Number of trips | 0,012 | |||
| Automation of unloading systems | 0,014 | |||
| CO2 and other pollutants emission | 0,0224 | |||
| Average fuel consumption of vehicle fleet | 0,0224 | |||
| New roads, pipes, routs per year | 0,0252 | |||
| Annual energy usage reducing per unit | 0,0056 | |||
| Communication | Informatization level | 0,036 | ||
| SUM | 1 |
References (I’m sorry not to find another place to put it):
SAATY AHP (e-books):
1) http://books.google.ru/books?id=TegYgX6JRo8C&pg=PA38&lpg=PA38&dq=SAATY+T.+decisions&source=bl&ots=yCLBDyogaG&sig=Sk3g1Ct8JAH60ypv4vB5K_lzumo&hl=ru&ei=fvfuSoGkNJaSnAOsh8SZDw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAsQ6AEwAA#v=onepage&q=SAATY%20T.%20decisions&f=false
SAATY AHP (russian non-pfficil source):
